The deep water dumping site for sewage sludge off the U.S. East Coast initially seemed to be a good choice because:
A) a well-developed pycnocline should isolate the sewage.
B) internal waves would decrease water mixing.
C) it had been a well-studies method of sewage disposal.
D) thermal mixing occurred between the surface and deep water.
E) tsunamis are uncommon in this area.

Question

Quizplus · Accepted Answer

A pycnocline would create a barrier between the surface and deep water, isolating the sewage and preventing it from mixing with surface waters.

The Deep Water Dumping Site for Sewage Sludge Off the U.S